In:
Canadian Journal of Biochemistry, Canadian Science Publishing, Vol. 48, No. 1 ( 1970-01-01), p. 7-11
Abstract:
A new porcine carboxypeptidase A, designated as A e , has been isolated from twice crystallized elastase. The enzyme preparation appeared homogeneous in the ultracentrifuge and gel electrophoresis, and had an s 20 , w of 3.34 S. A molecular weight of 34 700 was obtained from sedimentation equilibrium and the zinc content was 0.93 mole/mole enzyme. The new enzyme differs from the known porcine carboxy-peptidases (Aj, A 2 , A 3 ) in solubility properties and amino acid composition. The amino acid compositions of Ai, A 2 , and A e , which mainly differ in the content of isoleucine, are suggestive of their being genetic variants due to several amino acid replacements in the molecule.
Type of Medium:
Online Resource
ISSN:
0008-4018
Language:
English
Publisher:
Canadian Science Publishing
Publication Date:
1970
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